HETEROGENEA ASELLUS. 75 



into something of a pale flesh tint beneath ; on the 

 back, beginning at the front of the third segment, was 

 a broad, olive-brown, extensive mark, reminding one 

 somewhat of the dark saddle on Gerura vinula ; this 

 mark lessened in breadth a little on the fifth segment, 

 and then grew broader on the sixth, attaining its 

 greatest breadth on the seventh and eighth, where it 

 reached low on the sides ; it began to decrease again 

 on the ninth and thence gradually narrowed to the 

 anal tip. The olive-brown was darkest on the third 

 and fourth segments, and there was throughout an 

 outline of darker brown ; this was further relieved 

 below by a pale, sulphur-yellow border, which enlarged 

 to a spot on the side of the fifth segment, with smaller 

 spots on the fourth and sixth ; the second segment 

 was pale yellowish-green, and also the head, with a 

 slight tinge of brown, the mouth edged above and on 

 each side with dark brown, papillas yellowish-green. 

 A dark brown dorsal vessel could be seen through the 

 olive on the back as far as the end of the tenth seg- 

 ment ; the moving skin of the under surface was almost 

 colourless, with a clear, pellucid, jelly-like appearance. 



The cocoon was a quarter of an inch long, two lines 

 broad, of a very short elliptical form, bearing a great 

 resemblance to a gall excrescence ; a few fine threads 

 formed a kind of network round its base attached to 

 the leaf; it was dark dull brown, with blotches of a 

 pale grey film spreading irregularly over the upper 

 surface, as though it bore a delicate lichenous growth. 



The pupa-skin when extracted was but a trifle less 

 than a quarter of an inch long, and thick in propor- 

 tion, the abdomen bent under, which gave it rather a 

 rounded form ; the abdominal segmental divisions were 

 distinct, as were the parts of the head and thorax ; 

 the wing cases were well developed and projecting; it 

 was all very smooth and polished, and of a transparent 

 whity-brown colour, (W. B., 12, 7, 73; E.M.M. X, 

 70.) 



On the 13th July (1877) the Rev. B. Smith, of 



